Calculate the enthalpy of vaporization for water from the following: H 2 (g) + 1 2 O_ 2…

Chemistry · NEET · NTA ExamsChemical Thermodynamics

Calculate the enthalpy of vaporization for water from the following:

H2 (g) + \(\frac{1}{2} O_{2}(g)\)  → H2O (g), ∆H = - 57.0 kcal mol-1

H2 (g) + \(\frac{1}{2} O_{2}(g)\) → H2O (l), ∆H = - 68.3 kcal mol-1

  1. 5.65 kcal mol-1
  2. 11.3 kcal mol-1
  3. 22.6 kcal mol-1
  4. None of these

Answer

(B) 11.3 kcal mol -1

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